News
Tesla’s 4680 cell production process outlined in Giga Berlin’s revised filings
Tesla’s revised documents for Gigafactory Berlin have been posted online, and they are a treasure trove of information. The documents provided some new details about Tesla’s planned 4680 battery plant in Gigafactory Berlin, which Elon Musk noted is on track to be one of the world’s largest battery production facilities. They also outlined how Tesla’s 4680 cells are produced.
While sections of the filing pertaining to the planned 4680 battery cell plant in Giga Berlin were blacked out due to sensitive information that could not be made public, the documents show some important tidbits about the upcoming facility. This includes the facility’s cell production operations over four floors, with anode and cathode production on the first floor and tabless cell production on the third floor. The battery plant is massive, requiring large foundations similar to Gigafactory Berlin’s Phase 1 zone.
Anode and cathode production in the 1st floor pic.twitter.com/tOoV4b3Iur
— Tobias Lindh (@tobilindh) June 18, 2021
Most importantly, Tesla also submitted a simplified diagram of its 4680 battery cell production process, though most of the diagram was blacked out in the revised filing’s public release. However, the company provided a brief overview of how its new battery cell will be produced in the upcoming facility (roughly translated through Google Translate).
“The battery the Gigafactory Berlin requires special systems and process steps. The anodes and cathodes consist of coated current collector foils. Copper is used as the material for the anode foil and aluminum is used for the cathode foil. The anode and cathode components are manufactured in mixed processes (A020-01 and A020-02), which only use materials in powder form. The new materials used are tested and approved in our own laboratory (A020-11).
“In order for the powder coating to adhere to the two films, they must first be pre-coated with a thin layer of adhesive (substrate) (A020-03 and A020-04). This substrate is delivered in containers. The pre-coating is necessary because a dry coating with powder takes place. After the anode and cathode components have been mixed, they are applied as a coating to the respective substrate-coated film in order to establish electrical contact (A020-05 and A020-06). The current collector foils, coated with the anode or cathode components, result in the finished anode or cathode.
Page 239 pic.twitter.com/7gDk2fSeVy
— Giga Berlin / Gigafactory 4 (@gigafactory_4) June 18, 2021
The revised filings also provided a general idea of how Tesla’s tabless cell production works. Among these is the fact that the finished 4680 cells would be subjected to 10 days’ worth of curing after their formation.
“The anode or cathode is then cut to the required lengths with a laser in the “tabless process” (A020-08). The anode, the cathode and the separator are alternately placed one on top of the other and rolled up into a roll. This roller is then inserted into a metal housing, which is manufactured from steel rollers in a die-cutting and deep-drawing process (A020-07). In the assembly area, the final assembly and filling of the cell takes place with small amounts of electrolyte (approx. 10% of the cell weight) (A020-09).
“The electrolyte is absorbed by the electrode coatings and enables the lithium ions to move back and forth between the anode and cathode. The housing is then closed with a lid in a welding process. The last step is the formation (A020-10) of the cell. In the formation process, the cell is electrically started up by charging and discharging it under different temperature conditions. The finished cell remains in this area for approx. 10 days and is then put to further use. The cells produced are subjected to random quality control in our own laboratory (A020-11).”
A link to Tesla’s filings for Gigafactory Berlin could be found here.
Do you have anything to share with the Teslarati Team? We’d love to hear from you, email us at tips@teslarati.com.
News
Tesla Model 3 and Model Y earn Euro NCAP Best in Class safety awards
“The company’s best-selling Model Y proved the gold standard for small SUVs,” Euro NCAP noted.
Tesla won dual categories in the Euro NCAP Best in Class awards, with the Model 3 being named the safest Large Family Car and the Model Y being recognized as the safest Small SUV.
The feat was highlighted by Tesla Europe & Middle East in a post on its official account on social media platform X.
Model 3 and Model Y lead their respective segments
As per a press release from the Euro NCAP, the organization’s Best in Class designation is based on a weighted assessment of four key areas: Adult Occupant, Child Occupant, Vulnerable Road User, and Safety Assist. Only vehicles that achieved a 5-star Euro NCAP rating and were evaluated with standard safety equipment are eligible for the award.
Euro NCAP noted that the updated Tesla Model 3 performed particularly well in Child Occupant protection, while its Safety Assist score reflected Tesla’s ongoing improvements to driver-assistance systems. The Model Y similarly stood out in Child Occupant protection and Safety Assist, reinforcing Tesla’s dual-category win.
“The company’s best-selling Model Y proved the gold standard for small SUVs,” Euro NCAP noted.
Euro NCAP leadership shares insights
Euro NCAP Secretary General Dr. Michiel van Ratingen said the organization’s Best in Class awards are designed to help consumers identify the safest vehicles over the past year.
Van Ratingen noted that 2025 was Euro NCAP’s busiest year to date, with more vehicles tested than ever before, amid a growing variety of electric cars and increasingly sophisticated safety systems. While the Mercedes-Benz CLA ultimately earned the title of Best Performer of 2025, he emphasized that Tesla finished only fractionally behind in the overall rankings.
“It was a close-run competition,” van Ratingen said. “Tesla was only fractionally behind, and new entrants like firefly and Leapmotor show how global competition continues to grow, which can only be a good thing for consumers who value safety as much as style, practicality, driving performance, and running costs from their next car.”
News
Tesla is shifting FSD to a subscription-only model, confirms Elon Musk
Tesla CEO Elon Musk confirmed the upcoming update in a post on social media platform X.
Tesla will be ending one-time purchases of its Full Self-Driving (FSD) system after Valentine’s Day, transitioning the feature to a monthly subscription-only model.
Tesla CEO Elon Musk confirmed the upcoming update in a post on social media platform X.
No more FSD one-time purchases
As per Elon Musk in his post on X, “Tesla will stop selling FSD after Feb 14. FSD will only be available as a monthly subscription thereafter.” This marks a shift in how Tesla monetizes its FSD system, which can now be purchased for a one-time fee or accessed through a monthly subscription.
FSD’s subscription model has been $99 per month in the United States, while its one-time purchase option is currently priced at $8,000. FSD’s one-time purchase price has swung wildly in recent years, reaching $15,000 in September 2022. At the time, FSD was proficient, but its performance was not on par with v14. This made its $15,000 upfront price a hard sell for consumers.
Tesla’s move to a subscription-only model could then streamline how the company sells FSD. It also lowers the entry price for the system, as even price-conscious drivers would likely be able to justify FSD’s $99 monthly subscription cost during periods when long-distance travel is prevalent, like the holidays.
Musk’s compensation plan and FSD subscription targets
Tesla’s shift to a subscription-only FSD model comes amidst Musk’s 2025 CEO Performance Award, which was approved by Tesla shareholders at the 2025 Annual Shareholders Meeting with roughly 75% support. Under the long-term compensation plan, Musk must achieve a series of ambitious operational milestones, including 10 million active FSD subscriptions, over the next decade for his stock awards to vest.
The 2025 CEO Performance Award’s structure ties Musk’s potential compensation to Tesla’s aggressive targets that span market capitalization, vehicle deliveries, robotics, and software adoption. Apart from his 10-million active FSD subscription target, Musk’s compensation is also tied to Tesla producing 20 million vehicles cumulatively, delivering 1 million Tesla bots, and having 1 million Robotaxis in operation. He must also lead Tesla to a market cap of $8.5 trillion.
If successful, Elon Musk’s 2025 CEO Performance Award could make him the world’s first trillionaire. It could also help Tesla become the world’s most valuable company by market cap by a notable margin.
Tesla is planning for a new 300+ stall Supercharger station that will be an expansion of an existing facility, and the company is planning to add a surprise for the Semi.
The Firebaugh, California Supercharger is currently 72 Superchargers, but Tesla filed for an expansion that will add 232 additional plugs for passenger vehicles, and it also plans to add 16 Semichargers.
This will be the biggest Supercharger station Tesla will have to date, just months after it finished the Supercharger Oasis in Lost Hills, California, which has 168 stalls. This will have 304 total Supercharger stalls, and then the additional 16 Megachargers.
🚨 This Supercharger station will have 304 total stalls and 16 Semichargers following this expansion
Absolutely INSANE size 🔥
This is located on I-5, so many semis will be traveling along this route https://t.co/hM9hdLcWwg
— TESLARATI (@Teslarati) January 13, 2026
The Firebaugh Supercharger is located on I-5, which is a major reason for why Tesla has chosen the location for additional Megacharger plug-ins, as Tesla Semi Program Manager Dan Priestley said on X earlier today.
Lots of trucks to electrify on I-5
— Dan Priestley (@danWpriestley) January 13, 2026
The project was revealed by MarcoRP, a Supercharger tracker.
The expansion is a massive signal for charging demand, especially as Tesla’s Superchargers are opened to numerous automakers and are no longer exclusive to the company’s EVs. Additionally, the installation of Megachargers is a good sign to come for the Tesla Semi program, which aims to truly ramp up this year.
Tesla plans to launch production of the Semi later this year.
It could also mean Tesla is going to expand its footprint of large-scale Supercharger projects in the coming years, which would be a big boost as EV adoption continues to soar in the United States.
Tesla Model 3 and Model Y earn Euro NCAP Best in Class safety awards
Tesla is shifting FSD to a subscription-only model, confirms Elon Musk
